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<p class="MsoNormal"><span style="font-size:11.0pt">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’m a bit confused. We’re trying to get some number of the relative efficiency of different cypher algorithms using the openssl tool.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">When I type:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333;background:white">openssl ciphers -tls1_3 -stdname -V</span><span style="font-size:11.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I see this as one of the results:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="p1"><span class="apple-converted-space"><span style="font-size:10.5pt;font-family:"Courier New"">
</span></span><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">0x13,0x02 -
</span></span><span class="s2"><b><span style="font-size:10.5pt;font-family:"Courier New"">TLS_AES_256_GCM_SHA384</span></b></span><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New""> -
</span></span><span class="s2"><b><span style="font-size:10.5pt;font-family:"Courier New"">TLS_AES_256_GCM_SHA384</span></b></span><span class="apple-converted-space"><span style="font-size:10.5pt;font-family:"Courier New"">
</span></span><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">TLSv1.3 Kx=any</span></span><span class="apple-converted-space"><span style="font-size:10.5pt;font-family:"Courier New"">
</span></span><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">Au=any</span></span><span class="apple-converted-space"><span style="font-size:10.5pt;font-family:"Courier New"">
</span></span><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">Enc=AESGCM(256) Mac=AEAD</span></span><span style="font-size:10.5pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">However, when I try to do a speed test on this algorithm<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">openssl speed -evp TLS_AES_256_GCM_SHA384</span></span><span style="font-size:10.5pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="p1"><span class="s1"><span style="font-size:10.5pt;font-family:"Courier New"">speed: TLS_AES_256_GCM_SHA384 is an unknown cipher or digest</span></span><span style="font-size:10.5pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">What am I missing?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Karl<o:p></o:p></span></p>
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